20
11 12 20 15 14 17 13 19 18 16 
13 14 15 11 20 17 16 12 18 19 
12 11 14 13 15 17 20 19 18 16 
19 13 16 12 17 20 14 11 18 15 
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14 18 15 17 16 20 12 13 11 19 
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18 20 11 15 19 17 14 13 16 12 
17 20 16 11 12 15 18 19 14 13 
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